
US Tax & Financial Services Sarl
Brandschenkestrasse 20, 8001 Zurich, Switzerland
T: +41 44 387 8070 F: +41 44 387 8079
Blvd. Helvetique 36, 1207, Geneva, Switzerland
T: +41 22 700 2500 F: +41 22 700 2526
3 Harbour Exchange Square, London E14 9GE, United Kingdom
T: +44 20 7357 8220 F: +44 20 7357 8225
Nordics
US Tax & Financial Services Ltd / MAJATTORNEY
Norra Skeppsbron 5B, SE 803 10, GAVLE, Sweden
T: +46 26 18 82 22 M: +46 70 61 88 016
We are proud to celebrate 30 years of service to those with US tax compliance and advisory needs. We’ve never been more interconnected on a global basis than in today’s changing world.
US Tax & Financial Services provides tax advice, guidance, planning and compliance services (tax return preparation) for individuals, partnerships, corporations, trusts and estates for anyone subjected to the US tax system, wherever they may be in the world.

Darlene Hart - Founder and CEO
Darlene Hart is CEO & founder of US Tax & Financial Services (est. 1986), a global tax company with offices currently in London, Zurich, and Geneva. She has over 30 years of tax, accounting, financial and retirement planning experience, working with international Big 4 firms in financial planning and initiating systems and policies.
Her expertise has drawn the attention of Fortune 500 companies and she is known and sought after for her dynamic presentations on tax and financial matters, including the growing global transparency of the tax industry, to other professionals, banks, investors, accountants and the general public. Today much of her efforts are devoted to helping private clients become compliant with their US taxes through various options including Voluntary Disclosure, and the surfacing of undeclared funds to the appropriate authorities; and to advising banks and financial institutions on the US government’s FATCA legislation, which directly affects their relationships with their US clients.
Darlene is currently working with a number of trust companies on FATCA compliance and advising, assisting and training on US GAAP and tax accounting, and with the preparation of US tax returns for foreign trusts, partnerships and corporations.
Darlene holds a BS in Accounting and a MS in Tax from the University of Houston. She is an Enrolled Agent and member of the Association of International Accountants.